Oil burner



oct. 23, 192s. 1,688,375

C. A. BERKINS oIL BURNER Filed oct. 18, 1926 2 sheets-sheet 1 ocr. 23,1928. Y 1,688,375

c. A. BERKlNs ou. BURNER Filed oct. 18. 1926 2 sheets-.sheet 2 if-zzp. 3

fill

latented @et Z3, 1928.

narran STATES PATENT orifice.

CLARENCEA.: tannins, orv Miamnaroms, Minnesota.

o-rL BURNER, f f

Application lled October 18; 1926. Serial No. .l-2,395.

lily invention has for its object torprovide an improved oilorhydro-carbon burner' adapted for general use in furnaces, boilersstoves and the lili:e,and is designed parti-- cularly as an improvementon the type of hydro-carbon burner disclosed and claimed .1,499,385,issued ot in my prior Patenty N date July 1, 1924-.V f

ln the accompanying` drawings, which illustrate a commercial form of theimproved burner, lilre characters indicate like parts throughout theseveral views,

Referring` to the drawings:

Fig. 1 is a plan view showing the burnery with the air tube removed;

Fig. 2 is a bottom plan view of moved air tube; and Y Fig. 8 is avertical section talren through the complete burner on the lineB-S ofFig. 1.

the vre- The present invention differs from' or is in the top plate ofthe base member of the burner.

The base member l of the burner is of box-like form and, by averticalpartition 5, is divided into a dead air chamber 6 and an airintake chamber 7. At its top, this box-like base is provided with a`flanged cover 8 and, over the dead air chamber 6, said base is formedwith an annular bowl or depression 9 having an upwardlyA projectingconical central portion 10. The oil delivery pipe 11, at its upper end,is threaded and screwed into thetruncated top portion of the cone 10 andcommunicates with a short pipe section 12 that is threaded at both endsand its lower end is screwed into the cone 1() in registration with theadja# cent end of the oil pipe 11. This pipe section 12, therefore, is adetachablesection of the oil supply pipe. 1

The numeral 13 indicates the generatingy cone, the apex of which isperforated and internally threaded and screwed onto the threaded upperend ot the pipe section 12. This generating cone 13 is formed withannular steps 141 of increasing diameter fror the top toward the bottomof cone, and at its lower edge, said cone is formed integral with asupplementalr bowl l5 of annular form and of such dimensions ythat it isspaced from the lower bowl 9 so as to aii'ord an air space between thecones'lO and 13 the and between the annular' bowls 9' and` 15.

The bowl 9, at one side andabove its bottom, provided with any overflowpassage 16 from which an overflow pipef17 leads down wardly,preferabltthrough the air supply chamber 7. rlhe goose-necked or curvedair intake tube 18 is preferably a cast shell with its receiving' leglonger than its delivery leg.- The lower end of the relatively longreceivinp` legr yof this air tube is detachably seated in alarge opening19 formedl in the/,top plate 8 above the air supply chamber rhfllieextreme lower end of said leg` telescopes into theopening V19 and is`pro` vided with a stop flange 20 justabove the plate 8 and with anotched loclr lug 21 that eng'ageable'just below said plate 8. The lug21 is diametrically opposite the short leg of the air tube, so that whenthe air tube is applied as shown in Fig. 8, the shor leg of said tubewill be properly positioned around the upper portionof the generatingcone 13. The interlocking connection described, however, permits the airtube to be very readily lifted from working position by a sort ofrocking movement and to be applied in working position by a Vreverserocking movement.

The short leg of the air tube 1S is provided Y with overlapping spiralflanges or venes 22 that are spaced from the steps of the conelS, butwill cause the downwardly delivered air to take a whirling motion aroundthe cone.

VThe supplemental bowl 15 is provided with upstanding deflecting` pegsor lugs 28, which not only increase the heat-rarliziiting' surface ofthe bowl, but deflect the vapors in all directions and thereby insurethorough commingling of the oil vapors and air just before they passoutward of the supplemental bowl 15. v

In the improved burner described, there will always be air in the spacebetween the upper` and lower bowls, and this air will act more or lessas an insulation to prevent the lower bowl from becoming excessivelyhot,

should be extinguished while the oil 'supply even when the upper coneand supplemental vbowl are at `very high temperatures. r)The oil willnot, therefore, be subjected -to high temperature until it is deliveredonto the generating cone 13, and the said generating cone and`supplemental. bowl may be at very high temperatures, because themetallic conducting surface is reduced to a minimum, `to

wit: simply to the cross section of the pipe section l2. The airdelivered with a whirling motion around the cone will sweep eir-4cumferentia'lly over the kste is thereof, which insures rapidvaporlzatien of the' Orl Fand mixture with the air and, moreover, the

whirling commin'glcd air and il vapors will" beswept into thesupp'lemental bowl 15 and against and between the pins or pegs 23,

thereby further insuring the most thorough connninglin'gfof the oil'vapors' and air.

If, by accident, 'the flames of the burner isstill turned on, then theoverflow 4of oil accumulated inthe supplemental bowl 17 will runinto thelower bowl '9 and from thence out lthrough the overflow pipe 17.

In installing 'this burner in the firepot of a boiler orv furnace, the`b'ase Llwill usually bev placed directly on the grate bars 24 and Athegrate bars, outside the base, [will be covered with bricks 25 or thelike, so that the only air that can pass through the grate will gorupward through the air chamber 7 and thence through 'theair tube 18.

It will be noted that, in view of the thread-y :ed engagement betweenrvthe pipe section 1Q,

and cone, the'said cone and supplemental bow-l are finade verticallyladjustable with respect to the delivery end of the air tube and withrespect to thelower bowl or base plate.

In actual practice, th'efe'iiciency of this burner has been thoroughlydemonstrated.

TWhat I claim is: p

lAnoil burner comprising a base provided with anl air passage and offsettherefrom with anv annular bowl, of an oil dc livery pipe .extended axially through said bowl, a generating'cone supported by the upper endofsaid oil delivery pipe, the latter serving to deliver yoilto the topof said cone, anda 'supplemental annular bowl formed :integral with saidgenerating cone, said generating cone and supplemental *bowl beingspaced from said lower bowl.

2. The structure defined-in claim vl in `which said suppemental bowl isprovided with circumferentia-lly. spa-'ced lupstan ding de- `lie-stinglugs againstand between which the vwhich the lower bowl is provided witha drain lpassage and a 1drain pipe extended Vvftherefrorng:

4. The structure defined in claim =1` -i'nA which said upper bowl and4'cone 'are vertically adriustable with respect to said 'lower bowlandthe delivery end of saidiair pipe. `"n testimony whereof I affix mysignature.

CLARENCE A. meninivs'.'

